Should I start flowering?

My mothers are getting too big but my clones are too small, should I start flowering now or wait 2 weeks like I was going to do? Will the clones grow a little more during 12/12? How will waiting 2 weeks or not waiting affect my yield?

Wow, agreed, some of those are tiny. If they're growing well, they should be quite a bit bigger in another week, so I would wait a little longer. The mothers won't get much bigger by then. If you want to buy yourself some time, you could top all the biggest plants, then give them a week or two to recover. That'll give you more main colas, plus let the little ones catch up some.

ya id wait the week.
plants usually double their size during flowering